U.S. Interior Secretary Doug Burgum, pressed in the Tucson area Monday to spell out how he’ll handle the Colorado River's water crisis, said “nobody will be happy."
- Howard Fischer
PHOENIX — A Benson Republican lawmaker says Arizona lawmakers need to heed the lessons of a fairy tale when considering whether to preserve Mexican gray wolves.
- Henry Brean
It's blister-beetle season in Southern Arizona, and as the bug's name suggests, it's best to keep your distance.
Tucson Water violates state rules for keeping track of its drinking supply- Tony Davis
Tucson Water violated state requirements for two straight years, limiting how much of its drinking water is lost or not properly accounted for after all of its deliveries were totaled and analyzed.
- Tony Davis
Will Arizona get more serious about water conservation, or return to depending on groundwater pumping? Experts weigh in.
- Tony Davis
Out in the Avra Valley, about 30 miles northwest of Tucson, a wide swath of water pours down a fenced-off canal about 80 feet wide.
- Howard Fischer
PHOENIX — State fire officials unveiled a new network of cameras using artificial intelligence in hopes of spotting wildfires before they get too big.
Arizona is gearing up for a potential legal battle over Colorado River water, hiring a high-powered law firm with Supreme Court experience. As drought worsens and negotiations stall, officials warn a court fight over shrinking water supplies may be next.
A food control project in the Santa Cruz River to keep the flow of treated wastewater from crossing into Pinal County will allow it to be used for local needs and raise money.
Visitation dropped sharply but Saguaro National Park still stayed plenty busy in 2025, despite declines in international tourism and the longest federal shutdown in American history.
As the temperature keeps heating up, the Colorado River's expected spring-summer flows into Lake Powell keep declining.
Major cuts in Colorado River water use will likely be needed next year in Arizona and other Western states, several experts say.
A critical minerals mine under construction in the Patagonia Mountains could soon be allowed to expand onto Coronado National Forest land, under a draft decision from the U.S. Forest Service.
A Canadian company wants to reopen the San Manuel copper mine more than 20 years after it closed northeast of Tucson.
Five takeaways from Sunday's story about a Canadian company's plan to reopen the San Manuel copper mine more than 20 years after it closed northeast of Tucson.
Arizona Sonoran News is a news service of the University of Arizona School of Journalism.
Wearing an oxygen pack on her back for her COPD, Marcia OBara is leading a group of nature enthusiasts on a mission to see birds. They carry walking sticks on the flat trails, moving at their own pace, without pressure or competition and enjoying a sense of community.
Arizona will take nearly a $3 trillion total economic hit and lose millions of jobs that would have come to the state by 2060 if Central Arizona Project deliveries are halted by the federal government, a new report from the project's governing agency says.
The closed mine in San Manuel could reopen under a deal announced by a Canadian company that also wants to develop a major new mine 55 miles northeast of Tucson.
Tucson averaged 59.3 degrees from December 2025 through February 2026 — the National Weather Service's definition of winter for record-keeping purposes. That's 5 degrees above the normal wintertime average temperature here, the weather service says.
Tucson just experienced its warmest winter on record, with zero frost days and an average temperature of 59.3 degrees—shattering the 2018 record.
The University of Arizona plans to sell the 80-acre Al-Marah ranch along Sabino Creek on the Tucson area’s northeast side that famed Arabian horse breeder Ruth “Bazy” Tankersley left to the university to be used as an equine center when she died in 2013.
Construction speeds along at the South32 Hermosa mine in the Patagonia Mountains southeast of Tucson, even with final U.S. approval of the project still months away.
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A new Central Arizona Project video sends a dire warning about potential cuts to water supplies, but some water experts say it's too alarmist.
The number of Mexican gray wolves in Arizona and New Mexico grew to at least 319 in 2025, as the species inches closer to possible downlisting from endangered to threatened.
Some rhinos and giraffes could find room to roam in Sahuarita under a plan by the Phoenix Zoo for a wild animal conservation park and safari attraction south of Tucson.
Gov. Katie Hobbs won't intervene to block a planned state land sale in the Santa Rita Mountains that likely will open up 160 acres for tailings disposal for the Copper World mining project, a spokeswoman for the governor said.
Advocates for science, history and national parks are suing the Trump administration over its efforts to purge so-called negative and corrosive content from the displays at park sites, including several in Arizona.
During "Save Our Saguaros" month, local environmental groups are sounding the alarm on a flammable invasive grass that threatens the Sonoran Desert. Volunteers are working against the clock to clear brush before the peak of fire season arrives.
The Colorado River, which supplies Tucson's drinking water, has too little water to meet demands. Here's what to know about negotiations to deal with the situation.
Federal officials are moving forward with a "drastic" backup plan after seven states missed a critical deadline to save the depleted Colorado River. The proposal would hit the Central Arizona Project the hardest, forcing a historic shift in how Tucson and Phoenix manage their long-term drinking supplies.